3v4l.org

run code in 300+ PHP versions simultaneously
<?php interface Counter { /** @return self */ public function count(); /** @return int */ public function getCount(); } class ImmutableCounter implements Counter { private $count; public function __construct($count = 0) { $this->count = (int) $count; } public function count() { return new ImmutableCounter($this->count + 1); } public function getCount() { return $this->count; } } $counter = new ImmutableCounter(); echo $counter->count()->count()->count()->getCount(); //echo $counter->getCount(); echo ".";

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.40.0110.00418.81
8.3.30.0120.00619.09
8.3.20.0040.00420.20
8.3.10.0000.00821.97
8.3.00.0040.00422.50
8.2.170.0140.00722.96
8.2.160.0100.00320.89
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0040.00426.16
8.2.120.0080.00017.50
8.2.110.0040.00422.18
8.2.100.0070.00717.78
8.2.90.0080.00019.34
8.2.80.0000.00818.02
8.2.70.0040.00417.38
8.2.60.0000.00818.04
8.2.50.0060.00318.07
8.2.40.0000.00718.16
8.2.30.0040.00417.99
8.2.20.0000.00917.72
8.2.10.0000.00817.60
8.2.00.0080.00017.66
8.1.270.0080.00023.96
8.1.260.0000.00826.35
8.1.250.0030.00528.09
8.1.240.0050.00523.93
8.1.230.0060.00918.69
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00317.25
8.1.190.0000.00717.29
8.1.180.0040.00418.10
8.1.170.0090.00018.51
8.1.160.0040.00421.92
8.1.150.0000.00718.48
8.1.140.0040.00417.41
8.1.130.0030.00317.74
8.1.120.0000.00817.43
8.1.110.0000.00817.50
8.1.100.0000.00717.46
8.1.90.0040.00417.42
8.1.80.0070.00017.47
8.1.70.0080.00017.38
8.1.60.0030.00617.57
8.1.50.0030.00517.48
8.1.40.0000.00817.52
8.1.30.0040.00417.56
8.1.20.0040.00417.61
8.1.10.0030.00517.58
8.1.00.0000.00917.48
8.0.300.0080.00018.77
8.0.290.0080.00017.16
8.0.280.0030.00318.35
8.0.270.0030.00317.20
8.0.260.0000.00716.81
8.0.250.0070.00017.02
8.0.240.0030.00316.96
8.0.230.0040.00316.85
8.0.220.0030.00316.89
8.0.210.0030.00316.86
8.0.200.0000.00716.97
8.0.190.0000.00716.95
8.0.180.0070.00016.91
8.0.170.0040.00416.90
8.0.160.0000.00816.91
8.0.150.0070.00016.84
8.0.140.0040.00416.75
8.0.130.0080.00013.28
8.0.120.0000.00716.76
8.0.110.0080.00016.91
8.0.100.0000.00716.92
8.0.90.0000.00816.78
8.0.80.0060.01116.84
8.0.70.0040.00416.79
8.0.60.0000.00716.70
8.0.50.0000.00716.67
8.0.30.0180.00517.13
8.0.20.0080.01317.45
8.0.10.0000.00717.14
8.0.00.0120.00416.73
7.4.330.0000.00615.09
7.4.320.0030.00316.58
7.4.300.0060.00016.61
7.4.290.0000.00816.44
7.4.280.0000.00716.60
7.4.270.0030.00316.46
7.4.260.0030.00316.48
7.4.250.0000.00716.48
7.4.240.0020.00516.57
7.4.230.0070.00016.34
7.4.220.0070.01016.56
7.4.210.0070.00816.52
7.4.200.0030.00316.35
7.4.190.0030.00316.60
7.4.160.0030.01516.65
7.4.150.0150.00317.40
7.4.140.0080.00817.86
7.4.130.0060.01316.48
7.4.120.0080.01516.55
7.4.110.0160.00616.58
7.4.100.0140.00316.54
7.4.90.0200.00316.63
7.4.80.0160.00319.39
7.4.70.0030.01316.41
7.4.60.0040.01216.53
7.4.50.0020.00216.52
7.4.40.0060.00622.77
7.4.30.0140.00316.52
7.4.10.0070.01115.15
7.4.00.0080.01014.96
7.3.330.0030.00313.25
7.3.320.0060.00013.29
7.3.310.0000.00716.33
7.3.300.0030.00316.34
7.3.290.0030.01016.38
7.3.280.0090.00716.31
7.3.270.0090.00917.40
7.3.260.0130.00316.46
7.3.250.0170.00716.35
7.3.240.0070.01316.52
7.3.230.0070.01116.39
7.3.210.0070.01316.16
7.3.200.0060.01019.39
7.3.190.0070.01016.45
7.3.180.0130.00316.37
7.3.170.0060.00616.54
7.3.160.0190.00516.59
7.3.130.0040.01414.96
7.3.120.0060.01114.79
7.3.110.0120.00814.99
7.3.100.0130.00314.89
7.3.90.0000.01414.88
7.3.80.0060.00914.93
7.3.70.0030.01114.49
7.3.60.0120.00414.84
7.3.50.0030.00914.93
7.3.40.0070.00714.77
7.3.30.0090.00614.74
7.3.20.0100.00616.87
7.3.10.0070.00416.44
7.3.00.0050.00916.67
7.2.330.0060.01216.58
7.2.320.0080.01516.68
7.2.310.0120.00816.40
7.2.300.0090.00916.46
7.2.290.0090.01316.61
7.2.260.0030.01514.86
7.2.250.0110.00615.25
7.2.240.0060.01015.00
7.2.230.0100.01015.17
7.2.220.0000.01914.98
7.2.210.0090.00615.29
7.2.200.0060.00915.06
7.2.190.0000.01714.81
7.2.180.0030.00915.05
7.2.170.0090.00414.80
7.2.160.0080.01115.25
7.2.150.0060.01216.89
7.2.140.0100.00016.63
7.2.130.0060.01016.81
7.2.120.0080.00516.87
7.2.110.0050.00916.81
7.2.100.0050.01016.88
7.2.90.0070.00516.81
7.2.80.0080.00616.73
7.2.70.0090.00916.89
7.2.60.0090.00716.86
7.2.50.0090.00717.11
7.2.40.0090.00516.82
7.2.30.0060.01117.05
7.2.20.0060.01116.74
7.2.10.0080.00417.00
7.2.00.0080.00917.64
7.1.330.0030.01315.63
7.1.320.0100.00315.91
7.1.310.0060.00915.52
7.1.300.0100.00315.84
7.1.290.0080.00015.70
7.1.280.0030.00915.82
7.1.270.0040.01115.64
7.1.260.0040.00915.90
7.1.250.0070.00715.50
7.1.240.0070.00315.75
7.1.230.0000.01015.89
7.1.220.0040.00815.53
7.1.210.0070.01015.73
7.1.200.0020.00815.54
7.1.190.0080.00615.72
7.1.180.0100.00715.74
7.1.170.0130.00015.87
7.1.160.0030.01015.48
7.1.150.0030.01215.73
7.1.140.0130.00315.61
7.1.130.0070.00315.70
7.1.120.0000.01915.72
7.1.110.0110.00415.87
7.1.100.0050.00717.00
7.1.90.0000.01015.57
7.1.80.0030.01515.74
7.1.70.0040.01016.47
7.1.60.0090.01017.77
7.1.50.0050.01116.34
7.1.40.0060.00315.67
7.1.30.0070.01015.48
7.1.20.0090.00915.73
7.1.10.0030.01015.82
7.1.00.0040.04219.00
7.0.330.0060.00615.24
7.0.320.0060.00815.13
7.0.310.0070.00715.45
7.0.300.0070.01015.18
7.0.290.0080.00415.58
7.0.280.0070.00315.30
7.0.270.0060.00915.29
7.0.260.0070.01115.26
7.0.250.0000.01015.29
7.0.240.0030.01015.58
7.0.230.0060.00915.67
7.0.220.0070.00315.02
7.0.210.0060.00615.38
7.0.200.0070.00716.18
7.0.190.0000.01015.55
7.0.180.0030.01015.47
7.0.170.0100.00715.58
7.0.160.0030.01215.21
7.0.150.0030.01015.22
7.0.140.0060.03918.54
7.0.130.0030.00615.63
7.0.120.0070.00715.46
7.0.110.0030.00615.36
7.0.100.0050.02717.57
7.0.90.0120.04217.56
7.0.80.0160.03517.61
7.0.70.0080.02817.70
7.0.60.0050.02517.67
7.0.50.0140.02018.02
7.0.40.0110.02716.81
7.0.30.0110.03116.68
7.0.20.0060.02316.78
7.0.10.0030.04216.79
7.0.00.0020.02716.79
5.6.400.0060.00914.36
5.6.390.0060.00914.71
5.6.380.0100.00714.85
5.6.370.0060.00614.36
5.6.360.0000.01214.32
5.6.350.0080.00814.64
5.6.340.0040.01114.62
5.6.330.0080.00814.39
5.6.320.0090.00614.58
5.6.310.0110.00714.16
5.6.300.0000.01214.43
5.6.290.0000.01314.41
5.6.280.0020.04417.85
5.6.270.0000.00914.50
5.6.260.0000.01314.60
5.6.250.0040.03717.60
5.6.240.0050.04917.50
5.6.230.0100.04317.56
5.6.220.0080.03617.56
5.6.210.0090.01917.46
5.6.200.0070.02417.76
5.6.190.0020.04417.92
5.6.180.0060.03417.77
5.6.170.0110.04017.78
5.6.160.0080.04017.52
5.6.150.0050.02717.80
5.6.140.0110.02017.66
5.6.130.0050.02517.79
5.6.120.0020.02817.67
5.6.110.0060.02617.70
5.6.100.0070.02417.70
5.6.90.0020.02517.75
5.6.80.0050.02417.25
5.6.70.0020.02417.39
5.6.60.0030.02817.27
5.6.50.0050.02217.39
5.6.40.0040.03817.47
5.6.30.0070.01817.34
5.6.20.0070.04417.46
5.6.10.0100.04317.39
5.6.00.0050.04517.31
5.5.380.0070.04217.53
5.5.370.0080.04217.45
5.5.360.0070.02217.23
5.5.350.0040.02617.23
5.5.340.0050.02217.60
5.5.330.0050.04217.63
5.5.320.0080.03017.79
5.5.310.0060.03117.67
5.5.300.0030.02417.63
5.5.290.0090.02417.54
5.5.280.0030.02417.67
5.5.270.0020.03117.57
5.5.260.0080.04217.60
5.5.250.0060.02117.38
5.5.240.0030.02817.06
5.5.230.0080.02217.10
5.5.220.0020.02617.10
5.5.210.0040.02317.28
5.5.200.0070.02217.16
5.5.190.0050.02717.20
5.5.180.0090.03917.25
5.5.170.0080.00414.41
5.5.160.0030.04617.27
5.5.150.0070.04417.18
5.5.140.0070.02717.31
5.5.130.0030.04617.18
5.5.120.0040.02817.24
5.5.110.0130.03317.12
5.5.100.0100.04017.22
5.5.90.0050.04317.13
5.5.80.0110.04017.23
5.5.70.0140.03417.12
5.5.60.0020.04717.07
5.5.50.0040.02917.19
5.5.40.0030.03117.23
5.5.30.0090.03617.28
5.5.20.0070.02717.17
5.5.10.0100.03817.17
5.5.00.0110.04117.05
5.4.450.0030.02415.38
5.4.440.0040.02215.26
5.4.430.0070.02315.04
5.4.420.0040.02915.12
5.4.410.0060.02214.99
5.4.400.0040.02015.15
5.4.390.0030.02315.14
5.4.380.0040.02115.04
5.4.370.0060.02015.07
5.4.360.0040.02215.08
5.4.350.0030.02614.93
5.4.340.0030.03414.99
5.4.330.0030.00610.91
5.4.320.0060.04115.12
5.4.310.0050.04314.91
5.4.300.0080.02514.94
5.4.290.0100.03915.04
5.4.280.0060.04615.07
5.4.270.0030.04415.06
5.4.260.0070.04115.20
5.4.250.0030.04214.98
5.4.240.0070.04214.90
5.4.230.0100.03815.05
5.4.220.0050.02615.04
5.4.210.0030.02815.03
5.4.200.0090.03814.90
5.4.190.0130.03415.26
5.4.180.0040.04514.90
5.4.170.0080.03814.88
5.4.160.0090.02915.02
5.4.150.0050.04315.00
5.4.140.0070.04313.71
5.4.130.0050.03913.81
5.4.120.0100.03713.88
5.4.110.0030.03513.64
5.4.100.0060.03213.93
5.4.90.0060.03813.68
5.4.80.0090.03313.75
5.4.70.0050.04013.76
5.4.60.0060.03513.74
5.4.50.0080.03213.70
5.4.40.0070.04113.63
5.4.30.0090.03713.68
5.4.20.0110.03113.65
5.4.10.0030.04013.69
5.4.00.0050.04013.35
5.3.290.0030.03912.76
5.3.280.0030.04112.74
5.3.270.0030.04112.81
5.3.260.0070.04012.73
5.3.250.0120.02512.73
5.3.240.0070.02212.82
5.3.230.0090.03812.77
5.3.220.0060.04012.77
5.3.210.0100.03512.75
5.3.200.0060.04012.75
5.3.190.0030.02812.73
5.3.180.0130.03312.77
5.3.170.0080.03512.73
5.3.160.0100.03712.78
5.3.150.0120.02812.75
5.3.140.0030.04312.76
5.3.130.0070.04012.73
5.3.120.0050.02512.69
5.3.110.0060.04112.79
5.3.100.0120.03212.44
5.3.90.0020.04312.52
5.3.80.0080.03712.41
5.3.70.0020.03712.48
5.3.60.0050.04212.49
5.3.50.0000.04412.40
5.3.40.0100.02212.46
5.3.30.0080.02212.44
5.3.20.0070.03612.34
5.3.10.0020.02512.31
5.3.00.0110.03112.35
5.2.170.0070.06311.59
5.2.160.0100.06011.59
5.2.150.0000.07011.59
5.2.140.0030.06711.59
5.2.130.0030.07011.59
5.2.120.0100.05711.59
5.2.110.0070.05311.59
5.2.100.0000.03311.59
5.2.90.0070.05711.59
5.2.80.0100.05711.59
5.2.70.0030.03711.59
5.2.60.0100.05711.59
5.2.50.0130.02711.59
5.2.40.0000.06711.59
5.2.30.0030.06311.59
5.2.20.0100.04711.59
5.2.10.0000.03711.59
5.2.00.0100.04311.59
5.1.60.0030.02711.59
5.1.50.0070.05311.59
5.1.40.0030.05011.59
5.1.30.0030.03011.59
5.1.20.0030.03711.59
5.1.10.0000.03311.59
5.1.00.0030.04311.59
5.0.50.0030.04711.59
5.0.40.0070.02011.59
5.0.30.0100.05711.59
5.0.20.0070.02011.59
5.0.10.0070.03311.59
5.0.00.0030.06311.59
4.4.90.0030.01311.59
4.4.80.0030.03311.59
4.4.70.0030.03711.59
4.4.60.0070.01311.59
4.4.50.0000.04311.59
4.4.40.0030.03711.59
4.4.30.0070.03311.59
4.4.20.0000.02011.59
4.4.10.0000.02011.59
4.4.00.0100.05311.59
4.3.110.0000.03711.59
4.3.100.0000.03311.59
4.3.90.0000.02011.59
4.3.80.0100.02311.59
4.3.70.0000.02311.59
4.3.60.0070.03011.59
4.3.50.0000.02011.59
4.3.40.0100.04711.59
4.3.30.0000.03711.59
4.3.20.0030.02711.59
4.3.10.0030.03011.59
4.3.00.0030.02711.59

preferences:
41.19 ms | 400 KiB | 5 Q